[artplumber]

Originally posted by bell
not an engineer......but if one wheel compresses the shock, then the energy not absorbed by the shock will transfer to the other wheel, resulting in more traction for that wheel, and it should also counter the chassis roll associated when one wheel is moving upward.
interesting stuff

The damper is there to serve just as any damper - reduce the rapid oscillation of road irregularities, whereas the spring serves as the ride height/left to right loading. The linking of the left and right suspensions serve to keep the inside tire down and partially loaded, but only as limited by the spring length and rate.